<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			body{
				height:100%;
			}
			.c1{
				height:400px;
				margin-top: 100px;
				background: url(1.jpg) no-repeat 0px 0px;
				/*背景不变,内容滚动*/
				/*background-attachment: fixed;*/
				/*背景随着内弄一起滚动*/
				background-attachment: scroll;
			}
		</style>
	</head>
	<body>
		<div class="c1"></div>
		<div class="c1"></div>
		<div class="c1"></div>
		<div class="c1"></div>
		<div class="c1"></div>
		
	</body>
</html>
